The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 31, 1989
Filed:
Apr. 15, 1987
Applicant:
Inventor:
Mitsuo Soneda, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365205 ; 307530 ;
Abstract
A sense amplifier includes two cross-coupled field effect transistors capacitively coupled to respective bit lines from a memory cell. During a precharging operation two capacitors are charged to precharged voltages indicative of the threshold dispersion voltage between the two transistors. Thereafter, during a sensing operation, the precharged voltages are applied to the gates of the transistors to compensate for the threshold dispersion voltage.